Instruction manual

2. Preparation for Installation

2.4 Power supply facility

2.4.1 Power supply facility for 100 V AC

(1) Outlet

Use an outlet shown below, that conforms to the JIS and NEMA standards. This

type of electrical outlet is available from electrical equipment suppliers.

Table 2-2 Electrical outlet standards

Standards Specifications

JIS C-8303

NEMA 5-15R

15A 125V, two-pin grounded outlet

Figure 2-4 Two-pin grounded outlet (125V 15A)

When using the Switch at 100 V AC, always use a grounded power

outlet. Using the Switch without grounding could result in electric

shock or failures due to electrical noise.

(2) Distribution board

Use circuit breakers on the branch circuit supplying power to the Switch. See the

following table for the rated breaker capacity, and the required number of circuit

breakers and outlets.

Table 2-3 Rated breaker capacity and required quantity

Rated breaker

capacity

Power supply

redundancy

Number of required

circuit breakers

Number of required

outlets

None 4 4

15 AT with single

phase 100 V AC (for

a 15 A circuit)

Required 8 8

NOTE

For easy operation, the distribution board should be installed in the

same room as the Switch or in an adjacent room.

NOTE

For a redundant power supply, the power from different power supply

systems can be supplied to each power supply unit.

(3) Requirements for the incoming current to the distribution board

The capacity of the incoming current to the distribution board must be greater than

that of the breaker operating current described in the above

(2) Distribution board.